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Warning
titleEnd of computing services in Reading

The HPC (cca//ccb) service in Reading will terminate terminated on . All jobs submitted to cca/ccb, including TC-1 jobs, will then stop running.

The Computing services on ecgate will continue until , though with limited support.

Please migrate your TC-1 jobs to ATOS as soon as possible.

Please find hereafter some important notes on changes with the TC-1 service on Atos in Bologna.

Table of Contents

ECaccess Web Toolkit at ECMWF

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In order to ensure a proper functioning of the ECaccess jobs submissions, including the TC-1 service, it is essential to configure properly the SSH Keys under the user HOME on the Atos systems. See HPC2020: How to connect for more details.

You only need to do this once, and you can do it running the following commandYou could use the following commands to issue a new keys pair and configure them:

No Format
$> ssh-keygen -q -t ed25519 -N '' -C "$USER@ecmwf.int" -f /home/$USER/.ssh/id_ed25519
$> cat /home/$USER/.ssh/id_ed25519.pub >> /home/$USER/.ssh/authorized_keys

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key-setup

Without the SSH keys correctly installed, an ECaccess (TC1) job submission will issue an error message like:

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No Format
$> ecaccess-job-list
22379170   ecgate     STDBY      0/1    Oct 26 11:49   [bc06h012 (222)] tc1_06bc.cmd
22345657   ecgate     DONE       1/1    Oct 25 11:50   [bc06h012 (222)] tc1_06bc.cmd
$> ecaccess-job-delete 22379170

Mail notifications currently not working.

SLURM email notifications (directive "#SBATCH --mail-type=") in ECaccess batch jobs on Atos, including TC-1 jobs, are not working at this moment.

TC-1 jobs by TC-2 users

TC-2 users (z<MS> UIDs) cannot currently submit TC-1 jobs on the Atos systems. While we resolve this issue, we invite those users to use their personal UID to launch a TC-1 job, e.g. to trigger the TC-2 ecflow suite.

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